/u/00chill00chill00's posts in /r/askscience
With space being so unfathomabley expansive, how is it there hasn't been a single lifeform advanced enough to find us?
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What are some exciting cancer treatment advancements that have been / approved near approval recently?
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Does level of exposure to Covid 19 (or any pathogen) affect how bad a person's symptoms are? And how does that work?
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Can somebody explain how level of exposure works? Covid, or any other pathogen if it is the same idea.
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